there are five of us

Здравствуйте! I've only just begun to learn Russian so have no idea to form my own suggestion for this phrase, but when talking about my family, how would I say that there are five of us (in the family?)

Also, (just for your information) in the past peasants often said "ртов/едоков" (Genitive Plural: mouths/eaters) instead of "человек," because food was limited and it was very important to know how much you could eat or work. DO NOT USE THIS!!